After several minor modifications using img2img, the resolution was increased using SD upscale.
Prompt
Masterpiece, best quality, (shiki eiki:1.15), (outline:0.9), 1girl, solo, (expressionless:0.9), (highly detailed symmetric faces:0.95), (pupil:1.05), (gochuumon wa usagi desu ka?:0.95), (hitoribocchi no marumaru seikatsu :0.9), (shiny hair:1.05), (shiny skin:0.95), (loli:1.2), child, (loli face and big boobs:1.01), (large breasts:1.05), (medium breasts:0.95), (green hair, short hair, asymmetrical hair, blue eyes :0.99), (blue vest, ribbon-trimmed vest, epaulettes, buttons, white shirt, long sleeves, wide sleeves, (sleeve bow, red bow, white bow:1.05), black skirt, ribbon-trimmed skirt, white legwear, mary janes, black footwear :0.95), ([black headwear:blue headwear:0.5]:0.97), frilled hat, (spider lily:1.1)
Shiki eiki
After several minor modifications using img2img, the resolution was increased using SD upscale.